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Asked on November 22, 2019 by
Which of the following is an example of alien species invading a new ecosystem resulting in biodiversity losses
Introduction of Nile Perch into lake Victoria in east Africa
Introduction of Water Hyacinth into India
Introduction of African Catfish into Indian waters
All of the above
When alien species are introduced
unintentionally or deliberately for whatever purpose, some of them
turn invasive and cause decline or extinction of indigenous species. Examples:-
A) The Nile perch introduced into Lake Victoria in East Africa led
eventually to the extinction of an ecologically unique assemblage of
more than 200 species of cichlid fish in the lake.
Great environmental damage was caused
to our native species by invasive weed species like carrot grass
(Parthenium), Lantana and water hyacinth (Eicchornia).
C) The recent
illegal introduction of the African catfish Clarias gariepinus for a
quaculture purposes is posing a threat to the indigenous catfishes
in our rivers.
So, the correct answer is 'All of the above'.
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Dinesh Vol III Biology Pg 561 to 581
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Control of Invasive Alien Species
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Control of Alien Species
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